# lyansart

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Peon

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lyan
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1. ## Scatter / Instance Multiple Objects (per object probability, scatter by color)

Do you mean an example you can apply this to, or an example on how to do it? In the first case if you want something easy you can practice with just some rocks, and influence them by color for the density, or have some paths, like a river, and try to centralize them on the edges of the river. you can apply it to everything, like trees, tree branches, leaves on trees, and a lot else with no trees.. If you mean the second case there are a lot of basic houdini tutorials like this one Houdini training on youtube or vimeo. Good luck
2. ## why after SOP solver it ends up with a static geo?

Hi guys, I was trying to add points during time in a group. I managed by renaming the attribute inside a SOP SOLVER and then copying it to the previous frame, in order to "group combine" it after with the previous group. (as better explained here https://www.sidefx.com/forum/topic/31853/?page=1#post-148295 ) My question is, if I just do that and visualize the result of the SOP SOLVER, I end up with a static first frame geo, (that i solved with a point deform), but why is that happening? and is there a way to solve this and avoid to use the point deform? Thanks
3. ## flip boat tail

Hi Guys, I'm pretty new to Flips, and I am trying to achieve a really basic effects, like having a whitewater behind a boat to form a V. (whitewater slightly moving aside). Indeed what I achieve is simply a line II where my whitewater disappear pretty fast. this is not a human scale boat, is more 1 meter x 2 meters, sailing in a flat river (for now). Do you have any suggestion on why this is happening? Should I add a pump with a velocity? Or should I increase the resolution of the flip simulation? also, is the fact that i am reseeding in the flip simulation the particles under the water line that causes this "lost" of whitewater? I thought that the velocity would automatically generate a V shape, seems I am wrong! thanks for reading guys, and thanks if you'll help me get it somehow
4. ## blobby smoke

Hi guys! I have a particle simulation of a tornado, that drives a smoke sim. But when i render it create (for the particles far away from the others) blobby looks. even if i increase the division size , it only read the particles more detached, so more blobby. instead if i increase the sample distance it lose all the details.. and I would like to have something more "detailed", fluid. (I still have to add some more noise..) Can you help me and maybe give me some suggestion on how to proceed ? Thank you!
5. ## how to freeze everything to a frame?

Yeah it works! thank you
6. ## how to freeze everything to a frame?

I wanted to do a camera movement happening at frame 100 (the sim is 240frames long) but i want the simulation to stop at frame 100 for 24 frames (so it'll hold untill the camera returns to his place at frame 124). Do you have any idea of how i can do that? Thank you
7. ## Escape studios

does any of you went to the escape studios? I've been wondering if that could be a good school for learning houdini the fact is that I've been studying houdini for some time now, but i feel I lack in some basics things that is hard to find on the internet by my own instead of just asking a teacher. Do you thinks it's worth to try and find a course that fits me like this - 1 month of fx-, or it's possible to learn it by myself maybe in a bit longer time? Thank you!
8. ## render reflection

Hi guys, I'm trying to render something out of mantra and make a comp in nuke, do you know how i can render in the exr also the channel for the specular/reflection/diffuse? thank you
9. ## cache doesnt work?

I though caching out the particles (for example) will took off the time dipendent cook but even if that's not that (i've been trying to cache out every particles i have) still when i'm trying to play one simulation node it slows down A LOT because it cooks file that arent in that node, but in another one that is not even visible, and i have no idea why and how to avoid this problem
10. ## particles path circle

Hi guys! I've made a sim with particles but I would like to keep them rotate in circle for some seconds and then use their inherit velocity. how i can keep them rotating? i've been trying to add angular velocity with cos (\$T * 180) ty = sin (\$T * 180) this expression, but doesnt seem to work. any suggestions? thanks!
11. ## Constrain doesnt work

Hi guys, I've been playing around with the constraint and I can't make work the cone twist or the hard constraint.. The geometry starts flipping around before the ball hits the wall does anybody know why? Here's my example file, thanks.. constraint.hipnc
12. ## mantra doesnt show textures

the problem was i didn't typed the point after the texture name. It's so weird that it was showing in the viewport and not in the render anyway Thank you so much by the way, you saved me from a lot of headache!
13. ## mantra doesnt show textures

you're right sorry, Here is my hip with the model and the textures.. I changed the name in the UDIM extension as %(UDIM)d or it wouldn't read them
14. ## mantra doesnt show textures

with a random material it's rendering, and the weird thing is that in the viewport is showing the textures in the right place, and in the render view.. just nothing! :/ I've checked Use map and Udim filename expansion in the mantra surface :/ but yet nothing, if i render with a baketexture it's showing only black and white textures :/
15. ## mantra doesnt show textures

I've tried with a mantra surface, is that wrong? :/
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